Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
27763 (1991 RN22)
Classification: Main-belt Asteroid          SPK-ID: 2027763
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083839403128974 6.1363e-08  
a 2.259557434891745 1.6822e-08 AU
q 1.7887019532457 1.4416e-07 AU
i 4.958376487937385 7.2254e-06 deg
node 10.91958549226789 7.1342e-05 deg
peri 291.4293072367535 7.389e-05 deg
M 333.9158207343588 2.334e-05 deg
tp 2457090.389337549021
(2015-Mar-08.88933755)
8.1099e-05 JED
period 1240.604934818604
3.40
1.3854e-05
3.793e-08
d
yr
n .2901810156451116 3.2406e-09 deg/d
Q 2.73041291653779 2.0328e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      8318 days (22.77 yr)  
   first obs. used      1991-09-15  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61919  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:45:01  

Additional Information
 Earth MOID = .782008 AU 
 T_jup = 3.587 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5 mag n/a MPO302229  

27763 (1991 RN22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RN22 = 1998 UL31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-21 17:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin